<!DOCTYPE html>
<html>
<head>
<style>
 .one{ font-family:宋体;
       font-size:16px;
       color:green;
 }
 .two{ font-family:宋体;
       font-size:32px;
       color:#FFFF00;
 }
 .three{ font-family:宋体;
       font-size:40px;
       color:#FFA1A2;
 }
</style>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<h1 style="background:red">Mr.chen is a stupid</h1>


 <p class="one">选择类别一</p>
  <p class="two">选择类别二</p>
   <p class="three">选择类别三</p>
 <link rel="stylesheet" href="NewFile.css" type="text/css">
 <a>这是链接式</a>
</body>
</html>